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# If x and y are positive integers and m25 q1

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CIO
Joined: 02 Oct 2007
Posts: 1218
Followers: 95

Kudos [?]: 891 [0], given: 334

If x and y are positive integers and m25 q1 [#permalink]

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15 Feb 2012, 06:48
If $$x$$ and $$y$$ are positive integers and $$\frac{x}{y}$$ is an even integer, which of the following cannot be an odd integer?

A. $$y$$
B. $$x + y$$
C. $$y - 1$$
D. $$xy$$
E. $$y^2$$

m25 q13
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Math Expert
Joined: 02 Sep 2009
Posts: 35275
Followers: 6636

Kudos [?]: 85555 [0], given: 10237

Re: X/Y is an even integer (m25#13) [#permalink]

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27 Mar 2012, 03:47
If $$x$$ and $$y$$ are positive integers and $$\frac{x}{y}$$ is an even integer, which of the following cannot be an odd integer?

A. $$y$$
B. $$x + y$$
C. $$y - 1$$
D. $$xy$$
E. $$y^2$$

Given: $$\frac{x}{y}=even$$ --> $$x=y*even$$, since $$y$$ is an integer then $$x=even$$, hence $$xy$$ (option D) is always even.

To discard options A, B and E consider $$x=6$$ and $$y=3$$, and to discard option C, consider $$x=4$$ and $$y=2$$.
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Manager
Joined: 24 Apr 2013
Posts: 54
Schools: Duke '16
Followers: 0

Kudos [?]: 9 [0], given: 76

iF X AND Y are positive Integers...? [#permalink]

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20 May 2013, 14:26
If x and y are positive integers and xy is an even integer, which of the following cannot be an odd integer?
A. y
B. x+y
C. y−1
D. xy
E. 2y

got lost here
Manager
Status: *Lost and found*
Joined: 25 Feb 2013
Posts: 123
Location: India
Concentration: General Management, Technology
GMAT 1: 640 Q42 V37
GPA: 3.5
WE: Web Development (Computer Software)
Followers: 17

Kudos [?]: 104 [0], given: 14

Re: iF X AND Y are positive Integers...? [#permalink]

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20 May 2013, 14:32
If x and y are positive integers and xy is an even integer, which of the following cannot be an odd integer?
A. y
B. x+y
C. y−1
D. xy
E. 2y

got lost here

I am a lil lost over the choices mentioned here as well. The question clearly mentions xy is even, but since x and y are positive integers, 2y will be even as well for obvious reasons. Please check the source, since the choices show some redundancy,

Regards,
Arpan
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Feed me some KUDOS! *always hungry*

Math Expert
Joined: 02 Sep 2009
Posts: 35275
Followers: 6636

Kudos [?]: 85555 [0], given: 10237

Re: iF X AND Y are positive Integers...? [#permalink]

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20 May 2013, 14:58
If x and y are positive integers and xy is an even integer, which of the following cannot be an odd integer?
A. y
B. x+y
C. y−1
D. xy
E. 2y

got lost here

Merging similar topics.
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Re: iF X AND Y are positive Integers...?   [#permalink] 20 May 2013, 14:58
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# If x and y are positive integers and m25 q1

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